Best Air Source Heat Pumps UK (2026 Guide)
Last updated: June 2026
Compare the best air source heat pumps for UK homes in 2026, including strong options for overall performance, value, cold-weather confidence, quiet operation, smart controls and efficiency.
Our top pick for most UK homes: Daikin Altherma is our best all-round choice because it offers a strong balance of installer familiarity, product range, efficiency potential, support and everyday suitability. However, the best heat pump for your home still depends on heat loss, radiator sizing, flow temperature, hot water demand and installer design.
Compare the brands below, then check costs, running costs and grant eligibility before requesting quotes.
• Independent UK heat pump researcher
• Reviewed for accuracy
Quick Picks: Best Heat Pumps UK
Here are our top air source heat pump recommendations depending on your home, budget and priorities.
- 🥇 Best overall heat pump: Daikin Altherma
- 💷 Best value heat pump: Vaillant aroTHERM plus
- ❄️ Best for cold weather: Mitsubishi Ecodan
- 🏡 Best premium heat pump: Viessmann Vitocal
- 🔇 Best quiet heat pump: Samsung EHS R290
- ⚡ Most efficient heat pump: Panasonic Aquarea
- 🏠 Best for smart homes: LG Therma V
Before choosing a system, it is worth understanding heat pump installation costs in the UK, likely running costs, and available government grants.
If you are replacing an existing heating system, also read the relevant guide for your home: gas boiler to heat pump, oil boiler to heat pump, LPG boiler to heat pump or electric heating to heat pump.
Which Heat Pump Is Best for Most UK Homes?
For most homeowners, the best heat pump is not simply the model with the highest efficiency rating. It needs to be reliable, correctly sized, easy to service, widely supported by installers and suitable for your property.
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That is why we rate the Daikin Altherma as the best all-round air source heat pump for most UK homes.
Editorial rating: 4.8/5 based on efficiency potential, reliability, noise levels, installer support and suitability for UK homes.
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Best Air Source Heat Pumps UK: Quick Comparison
This table gives a quick overview before we break each model down in more detail.
| Heat pump | Best for | Why it stands out |
|---|---|---|
| Daikin Altherma | Best overall | Strong all-round choice with broad UK suitability and good installer familiarity. |
| Vaillant aroTHERM plus | Best value | Recognised heating brand with a strong balance of price, performance and support. |
| Mitsubishi Ecodan | Best for cold weather confidence | Well-known UK heat pump range often chosen by homeowners concerned about winter performance. |
| Viessmann Vitocal | Best premium option | Premium heating brand suited to higher-quality home heating upgrades. |
| Samsung EHS R290 | Best quiet heat pump | Modern R290 system suited to homes where outdoor unit noise and siting matter. |
| Panasonic Aquarea | Best for efficiency-focused homes | Strong efficiency potential when designed around low flow temperatures and suitable radiators. |
| LG Therma V | Best for smart features | Modern, connected-feeling system with strong smart-home and usability appeal. |
Important: These rankings compare heat pump brands at a general level. The best heat pump for your home should still be confirmed by a proper heat loss calculation, radiator assessment, hot water demand check and installer design.
How to Choose the Right Heat Pump for Your Home
The best heat pump depends on your home, not just the brand. A model that works brilliantly in one property may not be the right choice for another.
- Smaller homes: A compact, efficient system with sensible running costs is usually more important than maximum output.
- Larger homes: System sizing, radiator output and hot water demand become more important.
- Colder locations: Look for strong low-temperature performance and a proven UK track record.
- Quiet locations: Noise should be a priority if the outdoor unit is near neighbours, patios or bedrooms.
- Oil or LPG homes: Check whether the temporary £9,000 Boiler Upgrade Scheme uplift applies.
- Long-term savings: Focus on efficiency, insulation, flow temperatures and smart controls.
If you are still deciding whether a heat pump makes sense financially, compare installation costs, running costs and available UK heat pump grants before choosing a system.
How We Chose the Best Air Source Heat Pumps
Our recommendations are based on the factors that matter most for UK homeowners, not just brochure efficiency figures. A heat pump with strong published performance can still disappoint if it is oversized, installed poorly, paired with unsuitable radiators or run at unnecessarily high flow temperatures.
We compared each brand against practical homeowner criteria including UK installer familiarity, efficiency potential, noise, retrofit suitability, controls, value for money, brand confidence and long-term support.
- Installer support: Is the brand widely recognised and commonly installed in the UK?
- Efficiency potential: Can the system perform well when designed around sensible flow temperatures?
- Noise and siting: Is it suitable for smaller gardens, tighter plots or neighbour-sensitive locations?
- Retrofit suitability: Is it a practical option for replacing gas, oil or LPG boilers?
- Long-term confidence: Are parts, warranty, installer familiarity and aftercare likely to be straightforward?
We are not heat pump installers and we do not sell installations. The aim is to help homeowners compare options more clearly before requesting quotes.
Daikin Altherma – Best Overall Heat Pump UK
Best Overall
Best for: UK homeowners who want a reliable, well-supported all-round heat pump with strong installer familiarity.
The Daikin Altherma is our best overall air source heat pump for most UK homes because it offers a strong balance of efficiency potential, product range, quiet operation, installer support and long-term confidence.
For most homeowners, that balance matters more than choosing the heat pump with the highest brochure efficiency figure. A well-designed Daikin system can suit a wide range of UK properties, especially where the installer has correctly calculated heat loss, radiator requirements and flow temperature.
- Strong all-round choice for many UK homes
- Broad Altherma range for different property types
- Good UK installer familiarity and brand recognition
- Suitable for many common boiler replacement projects
- Good balance of efficiency, comfort and long-term support
Why we recommend it: Daikin is a safe, well-supported choice with few obvious weaknesses. It is not always the cheapest or the most premium option, but it is one of the strongest all-round starting points for UK homeowners comparing air source heat pumps.
Potential downside: The brand alone does not guarantee good performance. The exact Altherma model, system design, radiator sizing, hot water setup and installer quality matter just as much as the outdoor unit.
Best for you if: You want a dependable mainstream heat pump from a recognised brand and you are looking for a balanced option rather than a niche or budget-led system.
Vaillant aroTHERM plus – Best Value Heat Pump
Best Value
Best for: Homeowners who want a strong balance of price, performance and brand confidence from a recognised UK heating name.
The Vaillant aroTHERM plus is one of the best value air source heat pumps for UK homes. It offers solid performance, sensible output options and the reassurance of a familiar heating brand that many homeowners and installers already recognise.
It is a particularly strong option if you are replacing a gas, oil or LPG boiler and want a dependable mainstream heat pump without paying for the most premium system on the market. For many homes, Vaillant offers a practical middle ground between budget-led choices and higher-end premium brands.
- Strong value for money from a recognised heating brand
- Good balance of performance, support and everyday usability
- Suitable for many standard UK boiler replacement projects
- Works well as part of a properly designed heating and hot water system
- A practical option for homeowners comparing cost against long-term confidence
Why we recommend it: Vaillant gives homeowners a strong mix of cost control, brand confidence and practical performance. It is a sensible choice if you want a heat pump that feels familiar, well-supported and suitable for a wide range of UK homes.
Potential downside: Value does not mean it will automatically be the cheapest quote. The final cost will still depend on the property, cylinder requirements, radiator upgrades, pipework, controls and installer design.
Best for you if: You want a reliable heat pump from a recognised heating brand, with sensible pricing and good everyday usability rather than a niche or ultra-premium system.
Mitsubishi Ecodan – Best Heat Pump for Cold Weather Confidence
Best for Cold Weather
Best for: Homeowners who want a well-known heat pump range with strong UK recognition and confidence in colder months.
Mitsubishi Ecodan is one of the best-known air source heat pump ranges in the UK. It is often considered by homeowners who are concerned about winter performance, reliability and choosing a system with an established track record.
It is a strong option if you want a recognised heat pump brand and your main concern is whether the system can keep the home comfortable during colder weather. As with any heat pump, the final result still depends on the heat loss calculation, radiator sizing, flow temperature and quality of installation.
- Strong reputation for cold-weather confidence
- Well-known air source heat pump range in the UK market
- Good option for homeowners worried about winter performance
- Established choice for heating and hot water in UK homes
- Useful comparison point against other mainstream brands such as Daikin and Vaillant
Why we recommend it: Mitsubishi Ecodan is a strong choice for homeowners who want a proven, recognisable heat pump range and extra reassurance around winter heating performance.
Potential downside: A strong cold-weather reputation does not remove the need for careful design. Oversizing, poor commissioning or unsuitable radiators can still lead to disappointing comfort or efficiency.
Best for you if: You want a heat pump from a recognised brand and winter performance is one of your biggest concerns when replacing a boiler.
Viessmann Vitocal – Best Premium Heat Pump
Best Premium Option
Best for: Homeowners who want a premium heat pump from an established heating brand and are willing to pay more for refinement, design quality and long-term confidence.
The Viessmann Vitocal is our best premium heat pump choice for UK homeowners who want a more refined, higher-end system. It is well suited to buyers who are not simply looking for the cheapest installation quote and want a heat pump that feels like a long-term heating upgrade.
Viessmann is a well-established heating brand, and the Vitocal range is particularly appealing for homeowners who care about build quality, control options, quiet operation and how the full system fits into a wider home modernisation project.
- Strong premium brand positioning
- Good option for higher-end home heating upgrades
- Appeals to homeowners prioritising refinement and long-term confidence
- Suitable for buyers who want more than a budget-led installation
- Worth considering where design quality, controls and system integration matter
Why we recommend it: Viessmann Vitocal is a strong premium option for homeowners who want a high-quality heat pump system and are comfortable paying more for brand reputation, refinement and a more considered installation.
Potential downside: It is unlikely to be the cheapest option. A premium heat pump still needs a proper heat loss calculation, suitable radiators, good controls and careful commissioning to deliver the performance you expect.
Best for you if: You want a premium-feeling heat pump from a recognised heating brand and you are more focused on long-term quality than simply finding the lowest upfront price.
Samsung EHS R290 – Best Quiet Heat Pump
Best for Quiet Homes
Best for: Homeowners who need a modern heat pump for a smaller plot, urban home or neighbour-sensitive location where outdoor unit noise matters.
The Samsung EHS R290 is a strong option if quiet operation and modern design are high on your priority list. It is especially relevant for UK homes where the outdoor unit may be close to a patio, boundary, bedroom window or neighbouring property.
It also has a more future-facing feel thanks to its R290 refrigerant and modern monobloc design. That makes it a good choice for homeowners who want a heat pump that feels current, efficient and suitable for tighter residential settings.
- Strong choice where outdoor unit noise is a concern
- Modern R290 heat pump design
- Good fit for urban homes, smaller gardens and tighter plots
- Useful where siting and neighbour impact need careful thought
- Appeals to homeowners wanting a newer-generation system
Why we recommend it: Samsung EHS R290 is a strong choice for homes where outdoor unit noise, siting and modern design matter. It gives homeowners a contemporary alternative to more traditional heating brands.
Potential downside: Samsung may not feel as familiar as long-established heating brands such as Vaillant, Mitsubishi or Viessmann. Installer experience matters, so make sure the installer has worked with the specific Samsung system before.
Best for you if: You want a quieter, modern-looking heat pump for a smaller plot, urban home or location where neighbour impact is a key concern.
Panasonic Aquarea – Best Heat Pump for Efficiency-Focused Homes
Best for Efficiency
Best for: Efficiency-focused homeowners, especially where the system can be designed around low flow temperatures and suitable radiators.
Panasonic Aquarea is one of the strongest options to compare if your main priority is long-term efficiency. It is particularly appealing for homeowners who want to reduce running costs and are looking beyond brand familiarity alone.
The Aquarea range is best considered as part of a properly designed low-temperature heating system. Like every heat pump, its real-world efficiency will depend on the full setup, including heat loss, insulation, radiator sizing, flow temperature, controls and how the system is commissioned.
- Strong efficiency potential when the system is designed well
- Good choice for low-flow-temperature heating setups
- Appealing for homeowners focused on long-term running costs
- Worth comparing against more familiar mainstream brands
- Best suited to homes where radiators and controls support efficient operation
Why we recommend it: Panasonic Aquarea is a strong choice for buyers who care about long-term performance and want to compare heat pumps based on efficiency potential, not just brand familiarity or upfront price.
Potential downside: Efficiency claims can be misleading if the system is poorly designed. If the heat pump has to run at high flow temperatures because radiators are undersized or insulation is poor, the running-cost advantage may be reduced.
Best for you if: You want an efficiency-focused heat pump and are willing to make sure the wider system design, radiator sizing and controls are right before installation.
LG Therma V – Best Heat Pump for Smart Features
Best for Smart Controls
Best for: Homeowners who want a modern, connected-feeling heat pump with strong usability and smart-home appeal.
The LG Therma V is a good choice for homeowners who care about smart controls, connected features and day-to-day usability. It may appeal if you already use smart-home technology and want your heating system to feel easier to manage, monitor and understand.
LG is also a familiar technology brand, which may make the system attractive to buyers who want a heat pump that feels modern rather than purely traditional. As always, the quality of the installation and control setup will have a major impact on how well the system performs in daily use.
- Good smart-home and connected heating appeal
- Modern control options and user-friendly positioning
- Attractive for homeowners already using smart-home technology
- Useful where day-to-day usability is a major priority
- Good option for buyers who want a modern-looking system
Why we recommend it: LG Therma V is a strong option for homeowners who want a connected, modern-feeling heat pump and value usability as much as technical performance.
Potential downside: Smart features should not be the main reason to choose any heat pump. Heat loss calculation, radiator sizing, flow temperature, hot water setup and installer experience are still more important than app control alone.
Best for you if: You want a heat pump that feels modern, connected and easy to manage, and you are working with an installer who understands the LG Therma V range.
Most Efficient Heat Pump vs Best Overall Heat Pump
The most efficient heat pump is not always the best heat pump for every home. High efficiency ratings are valuable, but they only translate into lower bills when the full system is designed correctly.
For example, a heat pump with a very high SCOP may underperform if your radiators are too small, your home loses heat quickly, or the installer sets the system up poorly.
That is why our best overall pick is based on the full ownership picture: efficiency potential, reliability, installer support, noise levels, suitability and value.
If you want to reduce bills after installation, the right smart thermostat, smart TRVs and monitoring accessories can make a difference.
Mistakes to Avoid When Choosing a Heat Pump
Choosing on brand alone
A well-known brand is useful, but it does not guarantee good performance. Sizing, design and installation quality matter more.
Ignoring radiator suitability
Heat pumps work best at lower flow temperatures, so some homes need larger radiators or better emitters. Read our guide on whether you need new radiators for a heat pump.
Only comparing upfront cost
The cheapest quote can be poor value if the system runs inefficiently. Always compare upfront cost with heat pump running costs.
Overlooking controls
Good controls help your system run steadily and efficiently. See our guide to the best smart thermostats for heat pumps.
How Much Do the Best Heat Pumps Cost in the UK?
Most air source heat pump installations in the UK cost around £8,000 to £15,000 before grants, depending on the size of the property, the heat pump model, radiator upgrades, hot water requirements and installation complexity.
The Boiler Upgrade Scheme can reduce the upfront cost by £7,500 for many eligible homeowners in England and Wales. From 21 July 2026 to 31 March 2027, eligible off-gas-grid homes replacing heating oil or LPG can qualify for a higher £9,000 grant.
That means the best heat pump for your home should be judged on value, not just purchase price. A cheaper system that is poorly specified may cost more to run, while a more expensive system may not be worth it if your home does not need it.
Pros and Cons of Air Source Heat Pumps
Pros
- Very efficient when correctly designed
- Lower carbon emissions than fossil fuel heating
- Eligible for UK grants
- Can reduce long-term heating costs in suitable homes
- Works well with smart controls and zoning
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Cons
- Higher upfront cost than a boiler
- May require radiator or insulation upgrades
- Performance depends heavily on installation quality
- Outdoor unit placement needs careful planning
- Not every home is equally straightforward to retrofit
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FAQ: Best Air Source Heat Pumps UK
What is the best air source heat pump in the UK?
For most UK homes, we rate the Daikin Altherma as the best overall air source heat pump because it offers a strong balance of performance, reliability, installer support and suitability.
Which heat pump is best for cold weather?
Mitsubishi Ecodan is a strong choice for cold-weather confidence and winter reliability in UK homes.
What is the most efficient heat pump?
Panasonic Aquarea is one of the stronger efficiency-focused options, with high SCOP potential when installed as part of a well-designed system.
Are expensive heat pumps always better?
Not always. A premium heat pump can be a good choice, but design, installation quality, radiator sizing and controls often make a bigger difference to real-world performance.
How much does a good air source heat pump cost?
Most quality air source heat pump installations cost between £8,000 and £15,000 before grants, depending on the property and system requirements. Eligible oil and LPG homes may qualify for the temporary £9,000 grant uplift.
Which heat pump is best for oil or LPG homes?
There is no single best brand for every oil or LPG-heated home. The right choice depends on heat loss, radiator sizing, hot water demand and installer design. Off-gas-grid oil and LPG homes should also check whether the £9,000 grant uplift applies.
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Sources & Further Reading
This guide uses official scheme guidance, independent energy advice and manufacturer information to support claims about grants, suitability, running costs and heat pump performance.
- GOV.UK – Boiler Upgrade Scheme: what you can get
- GOV.UK – Boiler Upgrade Scheme grant values from 21 July 2026
- Ofgem – Boiler Upgrade Scheme guidance for property owners
- Energy Saving Trust – Boiler Upgrade Scheme explained
- Energy Saving Trust – Heat pumps: how they work, costs and savings
- Energy Saving Trust – How to ensure a heat pump runs efficiently
Next Steps
Once you have compared the best heat pumps, the next step is understanding installation costs, grants and running costs for your own home.
- See full heat pump cost breakdown →
- Compare heat pump running costs →
- View available heat pump grants →
- Oil boiler to heat pump guide →
- LPG boiler to heat pump guide →
- Check if you need new radiators →
- Compare smart thermostats →
- See the best smart TRVs for heat pumps →
- Explore useful heat pump accessories →
Final Recommendation
Daikin Altherma is our best all-round choice for most UK homes, but the right heat pump depends on your property, installer, radiator sizing, flow temperature and budget.
Before getting quotes, check the likely installation cost, running costs and grant eligibility so you can judge the full value of each system.